DataCompass: Visualizing and Navigating Relational Schemata

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DataCompass Visualizing and Navigating
Relational Schemata

• Varun Saini
• Atul Shenoy
• Jeevak Kasarkod
• Rohit Kelapure

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What is Snap?

• Snap is a web based interface that allows users
  to co-ordinate visualizations.
• User Tasks
• Query Database and Load results
• Assign visualizations
• Co-ordinate visualizations

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Snapped Visualizations
Load Query
Assign Visualizations
Assign Actions in Snap
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Snap-Together Visualization Nathan Conklin and
Chris North
http//infovis.cs.vt.edu/snap/
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Idea of DataCompass

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Why DataCompass?

• Construction process for snapping visualizations
  is two phase
• -Choosing the visualization
• -Specifying co-ordination
• DataCompass helps merge this into one view

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Version 1.0
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Version 2.0

• Features
• Overview Detail and Focus Context
• Different from version 1.0 since everything is
  enveloped within one view
• Relational schema navigational schema
• Other additional features over Version 1.0
  include
• Ability to edit your visualization
• Easier understanding and retention since all
  mouse actions are supported in one view

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Right Click Event Models
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Future Work

• Better Algorithm for displaying siblings

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Future Work (continued)

• Display of coordination information on the link
• Implementing brushing and linking between
  DataCompass and the visualizations in the web
  layout
• Editing link information

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Discussion
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Acknowledgements Dr.Chris North Nathan
Conklin http//java.sun.com